Northern Lights visible in 21 USA states 11-12. G4 geomagnetic storm, X5.1 solar flare. Best viewing 10 p.m.-1 a.m. EST. Peak ...

U.N. climate negotiations begin Monday with leaders urging urgency and cooperation to curb global warming. Leaders at the two ...

I’m writing in regard to your op-ed about Sun Day, held at Lincoln Park in Portland on Sept. 21. Hundreds attended, and a group I volunteer with, Portland Climate Action Team (PCAT), had a table ...